Use a direct include of strings headers in chrome/browser/chromeos/.

chrome/browser/chromeos/policy/device_local_account.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/policy/device_local_account.h"
 
 #include <set>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/string_util.h"
 #include "base/strings/string_number_conversions.h"
+#include "base/strings/string_util.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "chrome/browser/chromeos/settings/cros_settings_names.h"
 #include "google_apis/gaia/gaia_auth_util.h"
 
 namespace policy {
 
 namespace {
 
 const char kPublicAccountDomainPrefix[] = "public-accounts";
@@ skipping 133 matching lines @@
     }
 
     accounts.push_back(DeviceLocalAccount(
         static_cast<DeviceLocalAccount::Type>(type),
         account_id, kiosk_app_id, kiosk_app_update_url));
   }
   return accounts;
 }
 
 }  // namespace policy